Very simple answer for me. It was required, everybody did it, no big deal. How long did it take? Just a little bit less than four decades. At least, that's what it felt like. Actually maybe a month(?) to be 'comfortable' on the air, sort of. That was in the Novice portion, not the Extra! If I'm away from it for a while I don't have to start learning from scratch, but changing gears into the CW mind-set can take a while, you know? When I get tot he point where I start critiquing someone's fist, I know I'm 'back'. When I start critiquing my own fist, I know it's time to take a break again.